Subject
Astrophysics.
Measurement.
Physical measurements.
17
Physics.
17
Astronomy
13
Observations, Astronomical.
13
Cosmology.
3
Optics.
3
Optoelectronics.
3
Plasmons (Physics).
3
Space sciences.
3
Astronomy.
2
Astronomy -- Observations.
1
Atoms.
1
Condensed matter.
1
Elementary particles (Physics).
1
Fluids.
1
Geophysics.
1
Gravitation.
1
Hadrons.
1
Heavy ions.
1
Measuring instruments.
1
Mechanics.
1
Nuclear physics.
1
Quantum field theory.
1
Quantum physics.
1
Superconductivity.
1
Superconductors.
1
X-ray spectroscopy.
1